U.S. Patent 10848622 was awarded to Red Hat, Inc. on November 24, 2020 and is entitled “Control information for public switched telephone network (PSTN) using blockchain system.” The first named inventor is Axel Simon of Paris, . The abstract contains an overview of the patent disclosure:

Signaling system for public switched telephone network (PSTN) using a blockchain system. In one embodiment, a method is provided. The method includes determining that a phone call related operation between a first telecommunications operator and a second telecommunications operator has been requested. A public switched telephone network (PSTN) comprises the first telecommunications operator and the second telecommunications operator. The method also includes updating, by a node of a blockchain system, a distributed ledger to indicate that the phone call related operation between the first telecommunications operator and the second telecommunications operator has been requested. The method further includes analyzing the distributed ledger to determine if the phone call related operation has been approved. The method further includes proceeding with the phone call related operation in response to determining that the phone call related operation has been approved. Link to Full Patent

This blockchain patent was originally filed on April 18, 2019  as U.S. Patent Application 16/388756 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10848622. The primary examiner was Mohammad S Anwar.

Red Hat, Inc., who is the original assignee of this patent, has at least 2439 total granted patents in the United States as of the date of this article. This blockchain patent has been cited 0 times by other U.S. patents according to our law firm research, and can be considered an innovative patent in the field of cryptocurrency and blockchain.

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